JP2881777B2 - Column type shift device of automatic transmission for automobile - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column-type shift device for an automatic transmission for an automobile, and more particularly, to a shift operation mechanism and a locating mechanism.

b. Prior art Shift devices for automatic transmissions for automobiles include floor-type shift devices and column-type shift devices.

In a column type shift device, a selector shaft is attached to a steering column, a shift lever is positioned near a steering wheel, and a range selecting means of a shift pattern is installed on the selector shaft.

Conventionally provided shift pattern range selecting means arranges a cylindrical control member having a detent window around a selector shaft, and inserts a pin implanted in the selector shaft into the detent window. I have.

And in such a column type shift device, the selector shaft is moved in the axial direction by the shift lever,
The range of the shift pattern is selected by turning.

c. Problems to be Solved by the Invention By the way, in the shift pattern range selecting means in such a column type shift device, since the detent window is formed on the cylindrical control member, the processing becomes complicated and the size is increased. Since it is difficult to achieve high accuracy and it is necessary to secure an installation space for the cylindrical control member, it is necessary to install the selector shaft away from the steering column, and the device becomes large.

SUMMARY OF THE INVENTION An object of the present invention is to provide a column-type shift device for an automatic transmission for a vehicle, which is easy to process, has high dimensional accuracy, is compact, and has excellent durability.

d. Means for Solving the Problems In the present invention, a flat control plate is installed at the base of a shift lever, and a detent window and a locating hole of a shift pattern are formed on the control plate. In the shift device, the detent window and the locating hole are arranged in substantially the same circumference in the rotation direction of the shift lever, and the shift lever is
By disposing a detent pin that engages with the shift pattern, providing a ball housing in which a ball and a spring are provided along the vertical direction, and disposing the ball housing orthogonally to the control plate, And the shift lever, the detent pin and the ball housing are arranged on the upper surface side opposite to the mounting surface side of the control plate while the key lock mechanism is engaged with the ball housing. With a tongue that engages the lever of
The shift lever is configured to operate via the tongue in accordance with the shift position of the shift lever.

e. Embodiment FIGS. 1 to 8 show a column-type shift device for an automatic transmission for an automobile according to the present invention.

This shift device includes a shift operation mechanism A, a locating mechanism B, a shift lock mechanism C, and a key lock mechanism D of an ignition switch cylinder lock.

This shift device has a cylindrical housing 1, and brackets 2 and 3 are fixed to the housing 1. The housing 1 is arranged along the steering column E, and is fixedly installed on the steering column E, the dashboard F, and the like by the brackets 2, 3.

The shift operation mechanism A operates the shift lever 4 to move the detent pin 5 provided integrally with the shift lever 4 on the shift pattern 6, and also connects the cable connecting pin 8 via the selector shaft 7. To operate an automatic transmission (not shown) via a cable connected to the pin 8.

The shift lever 4 is, as shown in FIG.
have. The pipe 9 shapes the shift lever 4 and is curved to improve the operability of the shift lever 4. A release rod 10 is fitted into the pipe 9 with a sufficient gap from the pipe 9. The release rod 10 is formed to be curved in accordance with the shape of the pipe 9 and has a button 11 at a tip thereof.
The detent pin 5 is provided at the base end. The release rod 10 is urged by a spring 12 toward the tip of the shift lever 4. The base end of the shift lever 4 is fixed to the upper end of the selector shaft 7. The selector shaft 7 is rotatably supported by the housing 1, and the cable connecting pin 8 is fixedly provided at the lower end. On the other hand, a control plate 13 is integrally provided at the upper end of the housing 1. A detent window 14 is formed in the plate 13, and a shift pattern 6 is formed on a side wall of the detent window 14. The detent pin 5 of the shift lever 4 is fitted into the detent window 14, and the pin 5
Is shifted by the biasing force of the spring 12
Is pressed against.

The locating mechanism B gives moderation to the rotational movement of the shift lever 4, and the control plate 13 has a number of locating holes corresponding to the number of ranges of the shift pattern 6.
A ball housing 16 is disposed on the shift lever 4 along the vertical direction. Also, detent windows
The locating hole 15 and the locating hole 15 are arranged on the same circumference in the rotation direction of the shift lever 4. A locating ball 17 is housed in the ball housing 16, and the ball 17 is constantly urged downward by a spring 18. And this locating ball 17
When the ball housing 16 is arranged orthogonal to the control plate 13, the ball housing 16 moves on the locating hole 15 with the rotation of the shift lever 4, and is fitted into the locating hole 15 in a state of facing the elastically, and the elastic pressure is applied. The shift lever 4 is engaged to position the shift lever 4. Moreover, the shift lever 4, the detent pin 5, and the ball housing 16 are
The control plate 13 is arranged on the upper surface side opposite to the mounting surface side.

When the detent pin 5 of the shift lever 4 is located in the parking range 6a of the shift pattern 6, the shift lock mechanism C restrains the detent pin 5 at that position and releases the restraint under the conditions described later. Things.

The shift lock mechanism C has a lock ring 19 disposed immediately below the control plate 13. The lock ring 19 is rotatably supported with respect to the housing 1 and includes a locking claw 19a and an operating projection 19b.
The lock ring 19 is urged clockwise in FIG. 5 by a spring 20 interposed between the ring 19 and the control plate 13 so that the locking claw 19a is disengaged from the entrance of the parking range 6a. I'm waiting. Also,
The shift lock mechanism C includes a controller G (not shown).
An electromagnetic actuator 21 operated by the actuator 21 and a lever 22 operated by the actuator 21 are provided.
This lever 22 is disposed on the peripheral wall of the housing 1, one end of which is engaged with the projection 19 b of the lock ring 19, and
It is connected to the plunger 21a of the electromagnetic actuator 21 via 3. When the electromagnetic actuator 21 is excited, the plunger 21a is retracted, the lever 22 is rotated clockwise in FIG. 6, the lock ring 19 is rotated counterclockwise in FIG. The shift pattern 6 is moved to the entrance of the parking range 6a. The lock ring 19 comes into contact with a stopper pin 24 implanted on the back surface of the control plate 13, and stops the claw 18a there. That is, in this state, the detent pin 5 is restricted by the parking range 6a, and the shift operation cannot be performed.

The key lock mechanism D of the ignition switch cylinder lock 25 is provided only when the shift lever 4 is operated to the parking range 6a.
The key 28 can be removed from the rotating body 27 inside. This lock mechanism D has a lever 29, which is arranged on the peripheral wall of the housing 1. One end of the lever 29 protrudes upward through a hole 30 formed in the control plate 13. One end of the lever 29 is engaged with a tongue piece 31 attached to the ball housing 16 of the shift lever 4, and the other end of the lever 29 is connected to one end of a wire 32. The other end of the wire 32 is inserted into the cylinder lock main body 26, and is urged by a spring 33 so that the distal end enters the inside of the cylinder lock main body 26. When the tip of the wire 32 protrudes inward of the cylinder lock main body 26 shown in FIG. 8 (b), the rotating body 27 inside the main body moves to the position where the key 28 can be removed (steering lock position). Rotation is prevented.
When the distal end of the wire 32 shown in FIG. 7 (b) is retracted, the key 28 can be freely rotated. Therefore, the key 28 is rotated to a position where the key 28 can be removed. Can be taken.

 Hereinafter, the operation of the above-described shift device will be described.

When the car is not used, that is, the cylinder lock body
With the key 28 removed from 26, the shift lever 4
The detent pin 5 is inserted into the parking range 6a of the shift pattern 6 and the electromagnetic actuator 21
Is demagnetized, and the lock ring 19 is at the position where the lock of the detent pin 5 is released as shown in FIG. Also,
In this state, the ball 17 of the locating mechanism B
Is fitted in the endmost locating hole 15a, the lever 29 is rotated as shown in FIG. 7 (b), and the other end of the wire 32 is retracted from the rotary body 27 of the cylinder lock body 26. doing.

When the key 28 is inserted into the cylinder lock main body 26 and turned to the ON position, the electromagnetic actuator 19 is excited. When the electromagnetic actuator 19 is excited, the lever 22 is moved to the position shown in FIG.
The lock ring 19 is rotated to the position indicated by the dotted
Rotate to the lock position shown in the figure. Therefore, in this state, even if an attempt is made to operate the shift lever 4, the detent pin 5 hits the claw 19a of the lock ring 19, and the shift lever 4 cannot be operated from the parking range 6a to another range.

In order to release the lock of the shift lever 4 by the lock ring 19, it is necessary to depress a brake pedal (not shown). When the brake pedal is depressed, an operation signal is sent to a controller (not shown), and the electromagnetic actuator 19 is demagnetized by the controller. Therefore, the lock ring 19 is connected to the spring as shown in FIG.
The detent pin 5 is unlocked by being rotated by the urging force of 20.

Next, in order to operate the shift lever 4, it is necessary to press the button 11 of the shift lever 4. When the button 11 is pressed, the detent pin 5 escapes from the parking range 6a via the release rod 10. Therefore, the detent pin 5 of the shift lever 4 can be freely moved within the detent window 14, and the detent pin 5 can be moved to an arbitrary range (reverse range 6b, neutral range 6
c, drive range 6d, second range 6e, low range 6f)
Can be put in.

Thus, the shift lever 4 is moved to the parking range.
When the range is moved from 6a to another range, the ball housing 16 of the locating mechanism B is moved accordingly. Accordingly, the lever 29 is also rotated by the urging force of the spring 33 as shown in FIG. 8 (b), and the tip of the wire 32 projects into the cylinder lock main body 26 and engages with the rotary body 27. This state is continued as long as the shift lever 4 is not again put into the parking range 6a. Therefore, during this time, even if the engine is stopped, the key 28 cannot be removed from the cylinder lock main body 26.

In order to remove the key 28 from the cylinder lock main body 26, it is necessary to put the shift lever 4 into the parking range 6a. When the shift lever 4 is put into the parking range 6a, the lever 29 is rotated via the tongue 31 by the ball housing 16 of the locating mechanism B as shown in FIG. Tip the cylinder lock body 26
Withdraw from the rotating body 27. Therefore, the rotating body 27 can rotate to the steering lock position, and the key 28 can be removed by rotating to the position. On the other hand, when the shift lever 4 is put into the parking range 6a, the electromagnetic actuator 21 is excited, whereby the lock ring 19 is rotated to the lock position shown in FIG. 4, and the detent pin 5 of the shift lever 4 is parked. Locked in range 6a. However, when the key 28 is rotated to the steering lock position, the lock is released because the electromagnetic actuator 21 is demagnetized.

In the shift lock mechanism C in the above embodiment,
The detent pin 5 of the shift lever 4 is locked in the parking range 6a by exciting the electromagnetic actuator 21, and the lock is released by demagnetizing the electromagnetic actuator 21.
When the 21 is in the demagnetized state, the detent pin 5 may be locked in the parking range 6a, and the lock may be released by exciting the electromagnetic actuator 21. This allows the detent pin 5 of the shift lever 4 to be locked in the parking range 6a even when the key 28 is removed from the cylinder lock main body 26. In this case, when the brake pedal (not shown) is depressed, the electromagnetic actuator 21 is excited, and after confirming that the detent pin 5 has left the parking range 6a, the electromagnetic actuator 21 is demagnetized. 21 can improve the durability. When the shift lever 4 is returned from another range to the parking range 6a again, the detent pin 5
19a is eliminated.

f. Effects of the Invention As described above, the column-type shift device for an automatic transmission for an automobile according to the present invention has a flat control plate installed at the base of the shift lever, and the control plate has a detent window and a locating pattern of the shift pattern. A detent pin for engaging the shift pattern with the detent window, wherein the detent window and the locating hole are arranged in substantially the same circumference in the rotation direction of the shift lever. And a ball housing in which a ball and a spring are incorporated is provided along the up-down direction, and the ball housing is arranged orthogonal to the control plate, so that the ball is orthogonally facing the locating hole. And engage the shift lever, detent pin and ball housing with the control plate. Since it is located on the upper surface side opposite to the mounting surface, it is easy to process and has high dimensional accuracy, and the installation space does not spread around, so it is even more compared to the conventional column type shift device Can be made more compact.

Further, in the column type shift device of the present invention, a tongue that engages with a lever of a key lock mechanism is provided on the ball housing, and the lever operates via the tongue in accordance with a shift position of the shift lever. The key can be removed only when the shift lever is operated to the parking range,
Has excellent functions.

Further, in the column-type shift device of the present invention, the control plate is disposed immediately below the shift lever, and the shift pattern is selected and positioned between the shift lever and the control plate. And is robust.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a column-type shift device of an automatic transmission for an automobile according to the present invention, FIG. 2 is a side view showing an upper portion of the device, and FIG. 3 shows a shift lever of the device. FIGS. 4 to 6 show a shift lock mechanism in the device, FIGS. 4 and 5 show a shift locked state and an unlocked state by a lock ring, and FIG. 6 shows a lock ring. Shows the operating means of
7 and 8 show a key lock mechanism of a cylinder lock for an ignition switch of the device.
The figure shows a state in which the key can be removed, and FIG. 8 shows a key locked state. A: Shift operation mechanism, B: Locating mechanism, C
...... Shift lock mechanism, D ... Key lock mechanism, E ...
Steering column, 1 ... Housing, 4 ... Shift lever, 5 ... Detent pin, 6 ... Shift pattern, 6a ... Parking range, 7 ... Selector shaft, 8 ... Cable connecting pin, 9 ... Pipe 10 ... Release rod, 11 ... Button, 12 ... Spring, 13 ... Control plate, 14 ... Detent window, 15
… Locating hole, 16… Ball housing, 17…
… Ball, 18… spring, 19… lock ring, 19
a: Locking claw, 20: Spring, 21: Electromagnetic actuator, 22: Lever, 24: Stopper pin, 25:
… Cylinder lock, 26 …… Cylinder lock body, 27 …… Rotating body,
28 ... key, 29 ... lever, 30 ... hole, 31 ... tongue piece, 32
... wire, 33 ... spring.

Claims (1)

(57) [Claims] 1. A column type shift device for an automatic transmission for an automobile, wherein a flat control plate is provided at a base of the shift lever, and a detent window and a locating hole of a shift pattern are formed on the control plate. The detent window and the locating hole are arranged substantially in the same circumferential direction in the rotation direction, and a detent pin that engages with the shift pattern is arranged on the shift lever, and a ball and a spring are incorporated. A ball housing is provided along the up-down direction, and the ball housing is arranged orthogonal to the control plate, so that the ball is elastically engaged with the locating hole in an orthogonally facing state, and the shift lever and the detent pin are provided. And the ball housing are arranged on the upper surface side opposite to the mounting surface side of the control plate. On the other hand, a tongue that engages with a lever of a key lock mechanism is attached to the ball housing, and the lever is operated via the tongue in accordance with a shift position of the shift lever. Column type shift device for automatic transmissions for automobiles.